A．often necessary in order to avoid being defeated B．quite bad because people ought to be honest C．sometimes necessary in order not to hurt others" feelings D．usually bad if you are talking with a good friend
单项选择题Why did the author have to plot the course of her cruise（）
A．She had to demonstrate her ability to do so. B．She was afraid of getting lost. C．The coast was dangerous. D．The tides were strong.
单项选择题We can know a fish s age from its （）.
A．weight B．size C．scales D．length
